Single mother Emma Wilson and her telepathic half-vampire son Leo are forced to flee when they uncover her fiancé Joe is an undercover vampire hunter plotting to capture the boy.
During their escape, they meet Ethan Blackwood, a thousand-year-old pureblood vampire who turns out to be Leo’s biological father from a fateful encounter five years ago. To protect them from relentless hunter attacks, Ethan offers a one-year contract marriage, and the family moves into his ancient Blackwood Castle.
Ethan’s noble adoptive mother Victoria initially scorns the human Emma, but is gradually won over by her kindness and grit. In the final showdown, Emma is fatally struck by silver poison while shielding Ethan. He saves her by turning her into a hybrid vampire with his pure blood. The two sides later sign a peace treaty, ending centuries of racial conflict. The cross-species family finally settles into a peaceful, happy life in the castle.
